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Abstract

A method for simultaneously measuring the activities of multiple kinds of enzymes in single channel through concimitantly monitoring multiple wavelength absorbances is claimed; based on linear additivity of absorbances and the isoabsorbance wavelengths of chromogenic substrates and their chromogenic products, both the principles for the combination of chromogenic substrates required for simultaneously measuring the activities of multiple kinds of enzymes in single channel through concimitantly monitoring multiple wavelength absorbances and an approach for data processing to eliminate the interference of the overlapped absorbances are developed, kinetic analysis of reaction curves via numerical integration eliminates the interference of all substrates and products and estimates the maximal reaction rates of the enzymes to be measured, giving the linear ranges and the limits of quantification for simultaneously measuring the activities of multiple kinds of enzymes in single channel comparable to those by separate assays; the present invention is applicable for simultaneously measuring the activities of multiple kinds of enzymes in biological samples, simultaneously measuring multiple components by enzyme-labeled immunoassays, screening simultaneously of inhibitors against multiple targets, for the practice in clinical biochemical analyses, clinical immunoassays, health laboratory analyses, the discovery of inhibitors, and the basical researches which need the present invention.

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First Claim